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3 years ago

Simplify. (x9y4)(−8xy2)(−7x3)

Mathematics

1 answer:

777dan777 [17]3 years ago

3 0

$(x^9y^4)(-8xy^2)(-7x^3) = 56x^{13}y^6$

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Omar has 2 2/3 cups pf dough to male dumplings. If he uses 3/16 cup of dough for each dumpling, how many whole dumplings can he

swat32

2 2/3 cups is = 128 teaspoons and 3/16 is = 9 teaspoon. 128÷9=14.22.. so the answer would be 14

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4 years ago

Please answer ASAP! Thank you in advance, and remember to use wash your hands for 1 minute with antibacterial soap!!

Anastasy [175]

Answer: x=80

Step-by-step explanation:

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3 years ago

Indefinite integral need help pleaseeeeeee

tatiyna

Integrate indefinite integral:
$I=\int\frac{dx}{e^{2x}+3e^x+2}dx$

Solution:
1. use substitution $u=e^x$
=>
$du=e^xdx$
=>
$dx=\frac{du}{e^x}$
=>
$dx=\frac{du}{u}$
=>
$I=\int\frac{du}{u(u^2+3u+2)}du$
$=\int\frac{du}{u(u+2)(u+1)}du$
2. decompose into partial fractions
$\frac{1}{u(u+2)(u+1)}$
$=\frac{A}{u}+\frac{B}{u+2}+\frac{C}{u+1}$
where A=1/2, B=1/2, C=-1
$=\frac{1}{2u}+\frac{1}{2(u+2)}-\frac{1}{u+1}$
3. Substitute partial fractions and continue
$I=\int\frac{du}{2u}+\int\frac{du}{2(u+2)}-\int\frac{du}{u+1}$
$=\frac{log(u)}{2}+\frac{log(u+2)}{2}-log(u+1)}$
4. back-substitute u=e^x
$=\frac{log(e^x)}{2}+\frac{log(e^x+2)}{2}-log(e^x+1)}$
$=\frac{x}{2}+\frac{log(e^x+2)}{2}-log(e^x+1)}$

Note: log(x) stands for natural log, and NOT log10(x)

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3 years ago

What is the domain of the relation shown?<br> will mark as branliest

Schach [20]

Answer:

2 or 4

Step-by-step explanation:

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3 years ago

I really need help please____________

Lynna [10]

Answer:

P ($1 or $5) = 5/6

Step-by-step explanation:

There are 6 $1

There are 4 $5

There are 2 $10

There are a total of 12 spaces

P ($1 or $5) = ($1 or $5)/ total

There are 6 ones and 4 fives

= (6+4)/ 12

= 10/12

Divide the top and bottom by 2

=5/6

4 0

4 years ago